3rd gen Will

iTrader: (8)

I am doing a T56 swap here soon and I was thinking of running a GPS sending unit VS going with the dakota digital.

This is the unit I had in mind,
http://www.summitracing.com/parts/izl-s9020/overview/

It has a 4k output option, I should be able to wire this in to the ECM where the Purple and Yellow wires come in from the VSS right? I would wire the 4k signal to the yellow wire. I am not exactly sure if there is a low/ref signal from the box to hook to the purple wire to. The box has 4 wires out, I assume power, ground, output, and reference. If not what would I do with the purple wire? Can it be left unhooked?

Just want to make sure I am thinking about this correctly.

Thanks!

Tuned Performance

iTrader: (92)

Looks like it will do the trick. I didnt see the instal instruction on summits site. But it may not need B9 at the ecm hooked up.

3rd gen Will

iTrader: (8)

I didn't see instructions either, I emailed intelletronix about what each wire was designated for. I assume Red/Black are power/ground. The White and Gray, one would be signal and the other ? maybe reference.

Can you run it with the purple wire disconnected?

Tuned Performance

iTrader: (92)

As far as I know b9 is a ground, if you have a ground hook it up if not no worries.
If the output is optical instead of magnetic pulse you will have to do reprograming to the memcal and use c6 input.

3rd gen Will

iTrader: (8)

Ah, I will find that out as well.

My guess is optical since it's all electronic.

Tuned Performance

iTrader: (92)

If you need help with tuning send me a pm , we can work a very fair deal. looks like its a great way to go but I couldn't locate all the information about it. I have made a program that works well for the manual transmission swap some people have complained of bucking during decel when using a automatic calibration. but then again some people say its just fine lol.

3rd gen Will

iTrader: (8)

For sure, I can email you my tune file and do your thing and then email it back to me. I have access to chip burning equipment.

It would be great if intellitronix would get back to me, I have left them a voicemail and emailed them.

Tuned Performance

iTrader: (92)

Im sure it will work regardless its just knowing the output signal. We can do email binary .
If you want to change form uv erasable I like to solder in moates.net d2 onto the memcal.
Just a thought. But if you can burn I don't mind helping you out once you get the information send me a pm . Seems very reasonably price if its reliable better than fooling with a vss and sgi-5 for sure.

3rd gen Will

iTrader: (8)

I am not sure what the first part of that means! Haha. I have a moates adapter and a chip.

It is my thinking that the GPS will be easier and more accurate than trying to use a Dakota digital as well.

Tuned Performance

iTrader: (92)

It means I will send you a file to burn later on

3rd gen Will

iTrader: (8)

Right on

Well I finally got in contact with Intellitronix tech support and the guy said the box mimics a magnetic pulse. There is no reference wire only a signal output. So it seems like I would just ground the purple and hook the GPS sender to the yellow.

I am not sold on this. It seems as if the box would put out a digital signal, 0101, on/off. Compared to the wave signal of a Hall effect sensor.

My main question is if I hook the GPS unit to the purple wire, will I fry the ECM?

Tuned Performance

iTrader: (92)

The magnetic low is shown as a ground. If the GPS unit needs it to function hook it up to pin b9

Six_Shooter

iTrader: (2)

The 4th wire looks to be a "recall" wire for the "High speed recall function" of the unit.

Interesting. I hadn't though about a GPS unit for input to the ECM. I would still prefer something wired to the vehicle, even if it requires a buffer. But this is interesting none-the-less.

3rd gen Will

iTrader: (8)

So you are saying hook the GPS ground wire to the ECM? Wouldn't that send 12v to the ECM?

I don't think I am understanding correctly. The GPS only has one signal out wire.

3rd gen Will

iTrader: (8)

yes sir, that is what the Tech support guy was told me as well.

willexoIX

Subd to see this work, wondering if it could be an option for Megasquirt.

3rd gen Will

iTrader: (8)

I am probably getting to this swap in March, gathering up parts now. I will definitely report back what I figure out.

willexoIX

Sounds good, thanks!

UberFast

iTrader: (1)

Sub'd

So with this sending unit you don't need a signal from the tranny at all? If so then this is what I'm going to do rather than this vss retrofit I was going to use.

Edit: Oops I read the date on the last post wrong lol. So how'd it turn out?

3rd gen Will

iTrader: (8)

I haven't done this yet, hoping to start my M6 swap in March.

You are correct, there will be no signal from the tranny, the ECM would receive the input directly from the GPS module.

UberFast

iTrader: (1)

Dang I don't know what I was looking at again. I swear the last post was almost a year ago. I'm too young for this crap to happen. Well I'm looking forward to the outcome.

3rd gen Will

iTrader: (8)

Tuned Performance,

So from what I understand the GPS unit puts out a squarewave signal. I assume that will not work for the required sinewave signal the ECM wants from the VSS.

Will that work at the optical port? Seems to me like a square wave is a digital on/off signal.

Tuned Performance

iTrader: (92)

The square wave is a simulated magnetic pulse. ya You can hook the signal to b10

3rd gen Will

iTrader: (8)

SWEET!!

Thanks for you help on this.

Tibo

iTrader: (15)

So..... Its March, any updates?

3rd gen Will

iTrader: (8)

Just got the module in the mail yesterday. Hoping to put it in this weekend.

3rd gen Will

iTrader: (8)

So I put it in and hooked the signal wire to B10, B9 is not connected to anything and my speedo does not work.

Any suggestions Tunedperformance?

Tibo

iTrader: (15)

Did you hook it up to both? Or one at a time? With my GPS speedometer it takes a minute to locate itself, did you give it enough time? Could it be a GPS speedometer that doesn't register or create a pulse/reading until it is moving?

3rd gen Will

iTrader: (8)

I hooked the GPS unit to the computer, I am running the stock speedo. I only hooked it to the B10 terminal, VSS Input HI, per Tuned Performance recommendation. According to the box it takes up to 15 minutes to locate the first time, I gave it 30 minutes. There are 3 LEDS on the box. Red is power, Yellow is data recieved from satellite, and Green satellite link is active. They are all illuminated so I would guess the box is operating correctly. I drove the car a couple miles the speedometer did not move.

Tibo

iTrader: (15)

Were you able to open up TunerPro and see if it is receiving a reading by checking it's MPH reading? That way you could rule out a problem with the speedo.

3rd gen Will

iTrader: (8)

I didn't have anything hooked up to read the ecm. The car was stumbling on decel/coming to a stop, so I know the ECM wasn't getting a signal just by the behavior of the IAC.

3rd gen Will

iTrader: (8)

I was doing some research and it seem like the ECM must have the AC sine wave signal. So I took the unit out and hooked the factory VSS back up and it the speedo is working again. Seems like this was a failure. haha Dakota digital it is I guess. Hopefully I can return this part and get my $100 back.